MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links pointing to a redirector service, which in turn leads to a link farm of other PDFs. This pattern is indicative of a phishing or SEO poisoning campaign designed to drive traffic to malicious sites. The ML classifier strongly supports the malicious verdict, and the presence of embedded URLs and a redirector link confirms the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.ru/pify?keyword=trueman+biology+pdf+download In PDF document text
- http://vobaxad.harveyhensley.com/uploads/1/3/1/4/131453540/wasidujuwenuwubij.pdfIn PDF document text
- http://rogep.easy-backpacker.com/uploads/1/3/0/9/130969060/gafijotulotup.pdfIn PDF document text
- http://files.lkonsite.com/uploads/1/3/1/1/131164364/pebalebukipuxem-zoripudawugejev-dumudadabonobe-goxime.pdfIn PDF document text
- http://files.mhorakphotography.com/uploads/1/3/0/9/130969472/ragakupe_gepudivunageve.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0435/6499/0632/files/70957885173.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9005/9176/files/bifudexemaxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1424/8857/files/angle_x_axis_labels_ggplot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6689/2191/files/47444921526.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7325/7118/files/zefedoka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7983/5547/files/61509782023.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7482/2044/files/162131612.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wugituvunajobi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8475/0741/files/convert_to_word_doc.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2468/4968/files/31750013951.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4173/4311/files/besobuwadumafesenisogo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0252/7895/files/blowfish_algorithm_explanation_with_example.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1954/2434/files/bowarum.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004a8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A8F | 5268 bytes |
SHA-256: c9fbdeacb9f26f2d38c75fec3f250cc32a717f65fd524302b76e0a75989b3e50 |
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font_01_sfnt_off00005c62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C62 | 9932 bytes |
SHA-256: 7851a0283515f4028953685ed631dd343f30c1e180e638dd9fc0d3d8103e4639 |
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font_02_sfnt_off00007e85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E85 | 4324 bytes |
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230 |
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